Item Universal Mask Carrier For Use With Mfr No C50 Mfr No PC50 Compatible with Series 50 53 Compatible with Manufacturer Part Number 70501-187 70501-188 70501-189 70501-555 70501-556 70501-557 70501-628-1 70501-628-2 70501-628-3 70501-632 70501-633 70501